Energy Measurements and Preparation of Canonical Phase States of a Nano-Mechanical Resonator

Details Energy Measurements and Preparation of Canonical Phase States of a Nano-Mechanical Resonator Energy Measurements and Preparation of Canonical Phase States of a Nano-Mechanical Resonator

2007-07-25

arxiv.org/abs/0707.3803v2

Europhys. Lett. 82, 18003 (2008)

Physics

Quantum Physics

4 pages, revtex 4, 3 eps figures. v2: improvements to presentation

Scientific paper

We show that a continuous quantum non-demolition measurement of the energy of
a nanomechanical resonator can be achieved by monitoring the resonator with a
quantum point contact via a Cooper-pair box. This technique can further be used
to prepare highly non-classical states of two resonators, such as canonical
phase-reference states, and so-called "noon" states.

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